| 1 | #include <chrono> |
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| 2 | #include <thread> |
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| 3 | |
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| 4 | void |
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| 5 | thread_function () |
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| 6 | { |
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| 7 | // Set thread-specific breakpoint here. |
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| 8 | std::this_thread::sleep_for(rtime: std::chrono::milliseconds(20)); |
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| 9 | // On Windows, a sleep_for of less than about 16 ms effectively calls |
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| 10 | // Sleep(0). The MS standard thread implementation uses a system thread |
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| 11 | // pool, which can deadlock on a Sleep(0), hanging not only the secondary |
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| 12 | // thread but the entire test. I increased the delay to 20 ms to ensure |
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| 13 | // Sleep is called with a delay greater than 0. The deadlock potential |
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| 14 | // is described here: |
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| 15 | // https://docs.microsoft.com/en-us/windows/win32/api/synchapi/nf-synchapi-sleep#remarks |
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| 16 | } |
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| 17 | |
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| 18 | int |
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| 19 | main () |
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| 20 | { |
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| 21 | // Set main breakpoint here. |
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| 22 | |
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| 23 | #ifdef __APPLE__ |
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| 24 | pthread_setname_np("main-thread" ); |
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| 25 | #endif |
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| 26 | |
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| 27 | std::thread t(thread_function); |
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| 28 | t.join(); |
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| 29 | |
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| 30 | thread_function(); |
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| 31 | return 0; |
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| 32 | } |
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| 33 | |
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